Tire armor



A. WEISBERG.

TIRE ARMOR Dec. 19, 1922.

2 SHEETSSHEET I FILED SEPT. 2,1922.

Wgo s o INVENTOR.

A TTORNE Y.

Dec. 19, 1922. 1,439,590.

A. WEISBERG.

TIRE ARMOR.

FILED SEPLZ, 1922. 2 SHEETSSHET 2.

1 N VEN TOR.

By HM 84,

A TTORNEY tour and substantially rectangular in cross section and has its inner face conforming in contour to the contour of the bottom of the groove 7). The lower face of the tread elcntcnl Cl, and which is indicated at 10. is formed throughout with a series of spaced cavities 11. which are adapted to receive the protubcram-cs T, when the tread element 3 is mounted on the tire shoe 2. so as to prevent circumferential movement of the element 3 with respect to the shoe 2. The tread element 3, at each side thereof, is formed with an annular tapering projection and the said projections are indicated at 12, 13, and extend in opposite directions with respect to each other. The inner face 14, of each of the projections, is formedin contour to the bottom of the wall 8, of the channel and the inner portion 15, of the outer face of each of the projections conforms in contour to the wall 9 of the channels. When the tread element 3, is mounted on the shoe 2, it extends into the groove 5, and with the protuberances T, of the shoe seating in the cavities 11, this prevents as before stated, circumferential movement of the tread element 3, with respect to the shoe 2, and when the tread element 3, is mounted on the shoe 2, the projections 12, 13, extend into the channels at the sides of the groove 5 so as to prevent lateral movement of the tread element 3, with respect to the shoe 2,

The tread surface of the element 3 is provided with any suitable form of arrangement of anti-skidding devices 16. l

Referring toFigures 5 and 6, of the drawings, in which is shown a modified form of tread element and tireshoe, the latter is indicated at 17, and has its inner face, of the tread portion thereof, formed with spaced cavities 18, which are disposed throughout the inner face of the shoe 17, centrally thereof. The tread surface of the shoe 17, centrally thereof, is formed with a series of spaced protuberances '19, which are disposed cirenmferentially of the shoe 17, and at opposite sides of the protuberances 19, as well as being: spaced therefrom, are circum forentially extending channels 20, 21, which are formed in the outer face of the shoe.

The tread element shown in Figure 5, as indicated at 22. is formed from a. solid body of resilient material substantially arcuate in cross secti n. and provided with an integral extension .33. disposed throughout the element .212. and which is substantially rectangular in c oss section. The inner fa e of the element J2. conhirms in contour to the periphery of the tread portion of the shoe 17, and the said inner face is indicated at 25. and is provided centrally as well as throughout with spaced cavities 26. for the reception of the protuberances 19, on the shoe 17. At opposite sides of the protuberances 26, as well as being spaced therefrom,

the inner face. 25, of the element 22, is formed with continuous ribs or projections and which are indicated at 2T, 28, and the said ribs 52 :JH, conform in contour to the shape of the channels 20. 21.

\Vhcn the element 22, is mounted on the outer shoe 1?, the protuberanccs 19, engagin; in the cavities 2G, prevent circumferential movement of the element 22, with respect to the shoe 1?, and when the element is mounted in the position as stated. the ribs 27, 2S, engage in the channels 20, 21, and prevent lateral shifting of the element 22, with respect to the shoe 17.

The inner tube 1, when inflated, has portions thereof extending into the cavities 4, or the cavities 18, and by this provision, circumferential movement of the tube 1, is prevented with respect to the shoe 2.

By setting up a tire, in a manner as hereinafter referred to, with a removable tread element, when the latter becomes worn, it can be conveniently removed and a new one substituted, under such conditions overeom-. ing the necessity of discarding the outer shoe, thereby enhancing the life of the latter and reducing tire expenses, and the tire furthermore provides means to prevent circumferential movement of the inner tube, under, such conditions increasing the life of the 'es latter, as wear is reduced between the outer periphery of the inner tube of the inner face of the shoe 1.

The outer shoe 2, at the tread portion thereof, is provided with a seriesof reenforc- 10o ing members 29, 3t), 31 and 32, which may be formed of rubber. fabric or cord, and the reenforcing members 30, 31, are arranged adjacent to the side walls 6 of the groove,

5, and the reenforcing members 29, 32, are'105 arranged adjacent to the walls 9 of the channels. These reenforcing members act as means to maintain the walls 9, as well as walls 6 vertically.

Although the preferred embodiment ,of llo the invention is as illustrated taken in connection with the acctnnpanyine description, but it is to be understood that changes in the details of construction can be resorted to,, without departing from the spirit of the invention.

hat I claim isz l. A pneumatic tire omprising, an outer ,qhuc provided with peripheral in'ojeetions and peripheral channels, a. detachable tread elmnent mounted thereon and provided With 1 \ilhw and projections, said cavities receiving: said protubcranccs to prevent circnlnfercntial shifting of said element with re-, spect to the. shoe. and said projections ex- 126 tending in said channels to prevent lateral shifting of said element with respect to the shoe, said outer shoe further provided with interiorly arranged cavities and an inner tube mounted in said shoe and adapted to 130 have portions thereol' extend into said inner cavities to prevent circumferential niovement of the tuhe with respect to the shoe.

2. A pneumatic tire eonun'ising an outer shoe having its tread portion formed with a eircuinferentiallIy extending groove and further formed with a eircumferentially extending channel at each side of the groove, protuherances formed on said shoe and arranged within said groove, a removable tread element seated in said groove and having its inner face provided with cavities for the reception of said protnberances, and said tread element Furthermore provided with oppositely extending projections engagii'ig 15 in said channels, said outer shoe Furthermore provided in its inner face with spaced cavities, and an inner tuhe mounted in said shoe and adapted to have portions thereof extend into said inner cavities to arrest circum ferential movement of the tube with respeet to the shoe.

In testimony whereof, I affix my signature hereto.

AARON WEISBERG. 

